POLINI HI-SPEED E-BIKE: Further to already famous Polini Hi-Speed for Polini, Bosch, Brose, Shimano and Yamaha motors, Polini Hi-Speed enriches its range for the new Bosch My20, Olied, Mahle mod. Creo for Specialized and Fazua evation systems. - It is easy to install because the connectors communicate with the original ones. - The assembly takes only a few minutes. - It does not require any setting because it is self-adjusting. The device does not require any battery since it is self-recharging. - This item shall be used in accordance with the national laws concerning traffic; it cannot be used on public road.